<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>权限管理</el-breadcrumb-item>
      <el-breadcrumb-item>角色列表</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <el-row>
        <el-col>
          <el-button type="primary" @click="addDialogvisible = true"
            >添加角色</el-button
          >
          <!-- 添加用户对话框 -->

          <el-dialog
            title="添加角色"
            :visible.sync="addDialogvisible"
            @close="closeDialog"
          >
            <el-form :model="addForm" :rules="addRules" ref="addRef">
              <el-form-item label="角色名称" prop="roleName">
                <el-input v-model="addForm.roleName"></el-input>
              </el-form-item>
              <el-form-item label="角色描述" prop="roleDesc">
                <el-input v-model="addForm.roleDesc"></el-input>
              </el-form-item>
            </el-form>
            <div slot="footer" class="dialog-footer">
              <el-button @click="addDialogvisible = false">取 消</el-button>
              <el-button type="primary" @click="addRoles">确 定</el-button>
            </div>
          </el-dialog>

          <!-- 修改用户对话框 -->

          <el-dialog
            title="提示"
            :visible.sync="editDialogVisible"
            width="50%"
            @close="editDialogClose"
          >
            <el-form
              :model="editForm"
              status-icon
              :rules="editRules"
              ref="editRef"
              label-width="100px"
            >
              <el-form-item label="用户ID:">
                <el-input v-model="editForm.roleId" disabled></el-input>
              </el-form-item>
              <el-form-item label="用户名称:" prop="roleName">
                <el-input v-model="editForm.roleName"></el-input>
              </el-form-item>
              <el-form-item label="角色描述:" prop="roleDesc">
                <el-input v-model="editForm.roleDesc"></el-input>
              </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
              <el-button @click="editDialogVisible = false">取 消</el-button>
              <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
          </el-dialog>
        </el-col>
      </el-row>
      <el-table :data="rolesList">
        <el-table-column type="expand">
          <template slot-scope="scope">
            <el-row
              v-for="(item1, i1) in scope.row.children"
              :key="item1.id"
              :class="['bottom', i1 === 0 ? 'top' : '', 'vcenter']"
            >
              <el-col :span="5">
                <el-tag>{{ item1.authName }}</el-tag>
                <i class="el-icon-caret-right"></i>
              </el-col>
              <el-col :span="19">
                <el-row
                  v-for="(item2, i2) in item1.children"
                  :key="item2.id"
                  :class="[i2 === 0 ? '' : 'top', 'vcenter']"
                >
                  <el-col :span="6">
                    <el-tag type="success">{{ item2.authName }}</el-tag>
                    <i class="el-icon-caret-right"></i>
                  </el-col>
                  <el-col :span="18">
                    <el-tag
                      type="warning"
                      v-for="(item3, i3) in item2.children"
                      :key="item3.id"
                      closable
                      @close="removeRightById(scope.row, item3.id)"
                      >{{ item3.authName }}</el-tag
                    >
                  </el-col>
                </el-row>
              </el-col>
            </el-row>
            <!-- <pre> {{ scope.row }}</pre> -->
          </template>
        </el-table-column>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="角色名称" prop="roleName"></el-table-column>
        <el-table-column label="角色描述" prop="roleDesc"></el-table-column>
        <el-table-column label="操作" width="300px">
          <template slot-scope="scope">
            <el-button
              size="mini"
              type="primary"
              icon="el-icon-edit"
              @click="showEditDialog(scope.row.id)"
              >编辑</el-button
            >
            <el-button
              size="mini"
              type="danger"
              icon="el-icon-delete"
              @click="removeUserById(scope.row.id)"
              >删除</el-button
            >
            <el-button
              size="mini"
              type="warning"
              icon="el-icon-setting"
              @click="showSetRightDialog(scope.row)"
              >分配权限</el-button
            >
          </template>
        </el-table-column>
      </el-table>
    </el-card>
    <!-- 分配权限对话框 -->
    <el-dialog
      title="分配权限"
      :visible.sync="setRightDialogVisible"
      width="50%"
      @close="setRightDialogClosed"
    >
      <el-tree
        :data="rightList"
        :props="treeProps"
        show-checkbox
        node-key="id"
        ref="treeRef"
        default-expand-all
        :default-checked-keys="defKeys"
      ></el-tree>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRightDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="allotRights">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data() {
    return {
      rolesList: [],
      setRightDialogVisible: false,
      rightList: [],
      addDialogvisible: false,
      editDialogVisible: false,
      editForm: {},
      treeProps: {
        children: 'children',
        label: 'authName',
      },
      defKeys: [],
      roleId: '',
      addForm: {
        roleName: '',
        roleDesc: '',
      },
      addRules: {
        roleName: [
          { required: true, message: '请输入名称', trigger: 'blur' },
          { min: 2, max: 6, message: '长度在 2 到 6 个字符', trigger: 'blur' },
        ],
        roleDesc: [
          { required: true, message: '请输描述', trigger: 'blur' },
          {
            min: 1,
            max: 10,
            message: '长度在 1 到 10 个字符',
            trigger: 'blur',
          },
        ],
      },
      editRules: {
        roleName: [
          { required: true, message: '请输入名称', trigger: 'blur' },
          { min: 2, max: 6, message: '长度在 2 到 6 个字符', trigger: 'blur' },
        ],
        roleDesc: [
          { required: true, message: '请输描述', trigger: 'blur' },
          {
            min: 1,
            max: 10,
            message: '长度在 1 到 10 个字符',
            trigger: 'blur',
          },
        ],
      },
    }
  },
  created() {
    this.getRolesList()
  },
  methods: {
    async getRolesList() {
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }
      this.rolesList = res.data
      // console.log(this.rolesList)
    },
    addRoles() {
      this.$refs.addRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.post('roles', this.addForm)
        if (res.meta.status !== 201) {
          return this.$message.error('创建失败')
        }
        this.getRolesList()
        this.addDialogvisible = false
      })
    },
    closeDialog() {
      this.$refs.addRef.resetFields()
    },
    async showEditDialog(id) {
      const { data: res } = await this.$http.get('roles/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    editDialogClose() {
      this.$refs.editRef.resetFields()
    },
    editUserInfo() {
      this.$refs.editRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.put(
          'roles/' + this.editForm.roleId,
          { roleName: this.editForm.roleName, roleDesc: this.editForm.roleDesc }
        )
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败')
        }
        this.editDialogVisible = false
        this.getRolesList()
        this.$message.success('更新用户信息成功')
      })
    },
    removeUserById(id) {
      const confirmResult = this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      )
        .then(async () => {
          this.$message({
            type: 'success',
            message: '删除成功!',
          })
          const { data: res } = await this.$http.delete('roles/' + id)
          this.getUserList()
        })
        .catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除',
          })
        })
    },
    async removeRightById(role, rightId) {
      const configResult = await this.$confirm(
        '此操作将永久删除该文件, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).catch((err) => err)
      if (configResult !== 'confirm') {
        return this.$message.info('取消了删除')
      }
      const { data: res } = await this.$http.delete(
        `roles/${role.id}/rights/${rightId}`
      )
      if (res.meta.status !== 200) {
        return this.$message.error('删除权限失败')
      }
      this.getRolesList()
    },
    async showSetRightDialog(role) {
      this.roleId = role.id
      const { data: res } = await this.$http.get('rights/tree')
      if (res.meta.status !== 200) {
        return this.$message.error('获取权限列表失败')
      }
      this.rightList = res.data
      this.getLeafKeys(role, this.defKeys)
      this.setRightDialogVisible = true
    },
    getLeafKeys(node, arr) {
      if (!node.children) {
        return arr.push(node.id)
      }
      node.children.forEach((item) => {
        this.getLeafKeys(item, arr)
      })
    },
    setRightDialogClosed() {
      this.defKeys = []
    },
    async allotRights() {
      const keys = [
        ...this.$refs.treeRef.getCheckedKeys(),
        ...this.$refs.treeRef.getHalfCheckedKeys(),
      ]
      const idStr = keys.join(',')
      const { data: res } = await this.$http.post(
        `roles/${this.roleId}/rights`,
        { rids: idStr }
      )
      if (res.meta.status !== 200) {
        return this.$message.error('分配权限失败')
      }
      this.$message.success('分配权限成功')
      this.getRolesList()
      this.setRightDialogVisible = false
    },
  },
}
</script>
<style lang="less" scoped>
.el-tag {
  margin: 7px;
}
.top {
  border-top: 1px solid #eee;
}
.bottom {
  border-bottom: 1px solid #eee;
}
.vcenter {
  display: flex;
  align-items: center;
}
</style>